Calculator



FIG. 1 is a left, front and top perspective view of a calculator showingour new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front elevational view thereof.

The ornamental design for a calculator, as shown and described. 